Sort page revisions by "last review requested at"

wagtail_review/models.py

@@ -4,6 +4,7 @@
 from django.conf import settings
 from django.core.exceptions import ValidationError
 from django.db import models
+from django.db.models import Case, Value, When
 from django.template.loader import render_to_string
 from django.urls import reverse
 from django.utils.functional import cached_property
@@ -58,8 +59,25 @@ def get_pages_with_reviews_for_user(cls, user):
         Return a queryset of pages which have reviews, for which the user has edit permission
         """
         user_perms = UserPagePermissionsProxy(user)
-        reviewed_pages = cls.objects.values_list('page_revision__page_id', flat=True).distinct()
-        return user_perms.editable_pages().filter(pk__in=reviewed_pages)
+        reviewed_pages = (
+            cls.objects
+            .order_by('-created_at')
+            .values_list('page_revision__page_id', 'created_at')
+        )
+        # Annotate datetime when a review was last created for this page
+        last_review_requested_at = Case(
+            *[
+                When(pk=pk, then=Value(created_at))
+                for pk, created_at in reviewed_pages
+            ],
+            output_field=models.DateTimeField(),
+        )
+        return (
+            user_perms.editable_pages()
+            .filter(pk__in=(page[0] for page in reviewed_pages))
+            .annotate(last_review_requested_at=last_review_requested_at)
+            .order_by('-last_review_requested_at')
+        )
 
     class Meta:
         abstract = True

wagtail_review/templates/wagtail_review/admin/dashboard.html

@@ -15,6 +15,7 @@
                                 <a href="?ordering=page" class="icon icon-arrow-down-after"></a>
                             {% endif %}
                         </th>
+                        <th>{% trans "Last review requested at" %}</th>
                         <th class="status">{% trans "Status" %}</th>
                     </tr>
                 </thead>
@@ -26,6 +27,9 @@ <h2>
                                     <a href="{% url 'wagtail_review_admin:audit_trail' page.id %}">{{ page.get_admin_display_title }}</a>
                                 </h2>
                             </td>
+                            <td>
+                                {{ page.last_review_requested_at }}
+                            </td>
                             <td class="status">
                                 {% page_has_open_review page as is_open %}
                                 {% if is_open %}{% trans "Open" %}{% else %}{% trans "Closed" %}{% endif %}

wagtail_review/views/admin.py

@@ -98,7 +98,7 @@ class DashboardView(generic.IndexView):
     context_object_name = 'pages'
 
     def get_queryset(self):
-        return Review.get_pages_with_reviews_for_user(self.request.user).specific()
+        return Review.get_pages_with_reviews_for_user(self.request.user)
 
 
 class AuditTrailView(DetailView):